An electron initially at rest is accelerated across a potential difference of 63 kV. What are its wavelength (in pm), momentum (in keV/c), kinetic energy (in keV), and total energy (in keV)

hi there!

your question asks at which segment does freezing occur.

since we're talking about water, the freezing point of water will be 32 degrees fahrenheit or below.

hope this ! ~

we need to know the time interval during which the force acts. impulse of force = momentum change

snell's law

refractve index = sin incidence / sin refraction